One-pot synthesis of a C/SiFeN(O)-based ceramic paper with in-situ generated hierarchical micro/nano-morphology. Issue 16 (December 2017)

• Record Type: Journal Article
• Authors: Zhou, Cong; Fasel, Claudia; Ishikawa, Ryo; Gallei, Markus; Ikuhara, Yuichi; Lauterbach, Stefan; Kleebe, Hans-Joachim; Riedel, Ralf; Ionescu, Emanuel
• Is Part Of: Journal of the European Ceramic Society. Volume 37:Issue 16(2017)
• Page Start: 5193
• Page End: 5203
• Publication Date: 2017-12
• Subjects: Ceramic paper -- Single-source precursor -- Hierarchical micro/nano morphology -- VLS growth -- Si3N4 nanowires; Ceramic materials -- Periodicals; Composite materials -- Periodicals; Matériaux céramiques -- Périodiques; Composites -- Périodiques; Ceramic materials; Composite materials; Periodicals; Electronic journals; 666.05
• DOI: 10.1016/j.jeurceramsoc.2017.03.007
• Languages: English
• ISSNs: 0955-2219

Abstract

Abstract: In the present study, a C/SiFeN(O)-based ceramic paper with in situ generated hierarchical micro/nano-morphology was prepared upon thermal treatment of a cellulose-base paper surface-modified with a polymeric single-source precursor prepared from perhydropolysilazane (PHPS) and iron(II) acetylacetonate (Fe(acac)2 ). The ammonolysis at 1000 °C of the paper/precursor hybrid materials leads to a C/SiFeN(O)-based ceramic paper which exhibits the same morphology as that of the cellulose paper. Subsequent annealing of the ceramic paper in nitrogen atmosphere at temperatures from 1200 to 1400 °C results in the in-situ generation of ultra-long silicon nitride nanowires with aspect ratios in the range of 10 3 on the surface and in the macropores of the ceramic paper. The nanowires exhibit round Fe3 Si tips at the end, indicating that the growth occurred via iron-catalyzed VLS (vapor-liquid-solid) mechanism. The combination of single-source precursor, porous template and in situ VLS growth of 1D nanostructures provides a convenient one-pot synthesis approach to produce ceramic nanocomposites with hierarchical morphologies.